Watch Database

    Balance Staff

    For Seiko 2M21-0020

    Ronda #3521

    A: 3.12mm

    B: 1.67mm

    C: 0.85mm

    D: 0.37mm

    E: 0.55mm

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    Movement Listing

    This balance staff is used by the following movements:

    MovementShock SystemDescription
    Seiko 341Incabloc23 JWLS DSS SECOND SET
    Seiko Y753-4030IncablocSEIKO CASE REFERENCE COSERVE 2003/2004

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